Storage Devices Flashcards
1
Q
mass storage device
A
non volatile that holds system when power is down
- GB
2
Q
HDD
A
- stores on platter with magnetic surface
3
Q
5400 rpm
A
slowest performance
4
Q
7200 rpm
A
most computers
5
Q
10000 rpm
A
high performance drivers, gaming PCs
6
Q
15,000 rpm
A
highest rpm, excellent performance
7
Q
ssd
A
uses flash memory tech to implement persistent mass storage
8
Q
2.5” SSD
A
typical form factor
9
Q
M2 SSD
A
like a memory chip, used in laptops
10
Q
RAID 0
A
- striping
- each drive has half the data
- great for speed, but no data redundancy
11
Q
RAID 1
A
- mirrored disk array
-full redundancy - loss of space on one disk
- more expensive for storage costs
- fault tolerant
12
Q
RAID 5
A
- redundancy through parity
- most common
- 3 disks
- fault tolerant
13
Q
RAID 6
A
- better than 5
- double parity
- 4 disks
- fault tolerantho
14
Q
hot swappable
A
usb, thunderbolt, eSATA
- safe to remove without losing data
15
Q
optical drives
A
CD, DVD, BD (blue ray 25/50 GB)
